I have never personally changed my oil on my own because it's very intimidating, but a YouTube channel called "Little How-To Girl" has a toddler do a complete how-to video on changing your oil!
This girl is only THREE YEARS OLD, but she has way more experience than I do when it comes to car stuff!
If you have a toddler right now, make sure you keep this girl on your radar for a future daughter-in-law because who doesn't love free oil changes?!